Rust-lang/rust adopts an LLM policy to curb copy-paste contributions

Rust-lang/rust is adopting an LLM policy

Five Rust teams adopted a policy for the rust-lang/rust repo that bans mechanically copy-pasting LLM output into PRs, issues, or review replies. The post explains that polished PRs no longer signal real understanding, and LLM use has worsened the project's review backlog—currently 1,281 open PRs. The policy still allows LLMs for translation, finding poor diagnostics, or analyzing RFC gaps. The post does not specify penalties for violations, only that the rules are now public after a period of inconsistent, unpublished enforcement.

Why it matters: Rust's official repo bans copy-paste LLM output, backed by a concrete 1,281 PR backlog. Not a model launch or product update, so it stays below 85, but as a community governance signal it clears the featured bar.